Q: What is the sum of all factors of the number 25,221 excluding 25,221?
A: 13,243
The factors of the number 25,221 are: 1, 3, 7, 21, 1201, 3603, 8407, 25221.
If you add them up, you will get the total of 25,234. Now subtract 25,221 to get 13,243